Lens driving apparatus

摘要

Disclosed is a lens driving apparatus. The lens driving apparatus includes a base formed at a center thereof with a first opening; a housing coupled with the base and having a second opening corresponding to the first opening; a yoke installed on the base and including a horizontal plate having a third opening corresponding to the first opening and a vertical plate protruding upward from the horizontal plate; a bobbin movably installed in the yoke and coupled with a lens module; a coil fixedly disposed around the bobbin; a plurality of magnets provided at the vertical plate of the yoke to face the coil; and a spring installed on at least one of upper and lower portions of the yoke to return the bobbin, which has moved up due to interaction between the magnet and the coil, to its initial position.

主权项

1. A lens driving apparatus comprising:
a base; a yoke disposed on the base and including a horizontal plate having four side surfaces and a vertical plate extended from the horizontal plate: a bobbin provided in the yoke; a coil disposed around the bobbin and including eight outer peripheral surfaces; an upper spring coupled to an upper portion of the bobbin; a lower spring coupled to a lower portion of the bobbin; and a plurality of magnets disposed around the coil; wherein the coil includes first regions facing the plurality of magnets and second regions not facing the plurality of magnets, wherein the first regions and the second regions are alternately disposed, and wherein the first regions of the coil and a first plane of each magnet facing the coil have the same curvature.